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  An adaptive clustering procedure for continuous gravitational wave searches

Singh, A., Papa, M. A., Eggenstein, H.-B., & Walsh, S. (2017). An adaptive clustering procedure for continuous gravitational wave searches. Physical Review D, 96: 082003. doi:10.1103/PhysRevD.96.082003.

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1707.02676.pdf (Preprint), 6MB
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 Creators:
Singh, Avneet1, Author           
Papa, Maria Alessandra1, Author           
Eggenstein, Heinz-Bernd2, Author           
Walsh, Sinéad1, Author           
Affiliations:
1Astrophysical and Cosmological Relativity, AEI-Golm, MPI for Gravitational Physics, Max Planck Society, ou_1933290              
2Observational Relativity and Cosmology, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society, ou_24011              

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Free keywords: General Relativity and Quantum Cosmology, gr-qc, Astrophysics, Instrumentation and Methods for Astrophysics, astro-ph.IM,Mathematics, General Topology, math.GN
 Abstract: In hierarchical searches for continuous gravitational waves, clustering of candidates is an important postprocessing step because it reduces the number of noise candidates that are followed-up at successive stages [1][7][12]. Previous clustering procedures bundled together nearby candidates ascribing them to the same root cause (be it a signal or a disturbance), based on a predefined cluster volume. In this paper, we present a procedure that adapts the cluster volume to the data itself and checks for consistency of such volume with what is expected from a signal. This significantly improves the noise rejection capabilities at fixed detection threshold, and at fixed computing resources for the follow-up stages, this results in an overall more sensitive search. This new procedure was employed in the first Einstein@Home search on data from the first science run of the advanced LIGO detectors (O1) [11].

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 Dates: 2017-07-09201720172017
 Publication Status: Issued
 Pages: 11 pages, 9 figures
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Title: Physical Review D
  Other : Phys. Rev. D.
Source Genre: Journal
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Publ. Info: Lancaster, Pa. : American Physical Society
Pages: - Volume / Issue: 96 Sequence Number: 082003 Start / End Page: - Identifier: ISSN: 0556-2821
CoNE: https://pure.mpg.de/cone/journals/resource/111088197762258